<html lang="en"><head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <title>example</title>
    <style>
      @keyframes opacity {
        0% {
          opacity: 1;
        }
        50% {
          opacity: 0.5;
        }
        100% {
          opacity: 1;
        }
      }
    </style>
  </head>
  <body>
    <div id="app"><style>._{position:fixed;z-index:999;background:#ccc;animation:opacity 1.5s linear infinite;}.__{top:0%;left:0%;width:100%;}</style><div class="_ __" style="height:100%;z-index:990;background:#fff"></div><div class="_ __" style="height:7.496%;background:#3388ff"></div><div class="_" style="height:2.699%;top:8.846%;left:4%;width:5.333%"></div><div class="_" style="height:3.148%;top:8.246%;left:89.333%;width:7.467%"></div><div class="_" style="height:2.249%;top:8.996%;left:17.333%;width:5.333%"></div><div class="_" style="height:2.249%;top:8.996%;left:26.133%;width:4.8%"></div><div class="_" style="height:2.399%;top:8.979%;left:34.133%;width:50.667%"></div><div class="_" style="height:20.987%;top:13.491%;left:3.333%;width:93.333%"></div><div class="_" style="height:5.995%;top:36.28%;left:4.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:43.171%;left:0%;width:20%"></div><div class="_" style="height:5.995%;top:36.28%;left:24.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:43.171%;left:20%;width:20%"></div><div class="_" style="height:5.995%;top:36.28%;left:44.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:43.171%;left:40%;width:20%"></div><div class="_" style="height:5.995%;top:36.28%;left:64.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:43.171%;left:60%;width:20%"></div><div class="_" style="height:5.995%;top:36.28%;left:84.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:43.171%;left:80%;width:20%"></div><div class="_" style="height:5.995%;top:47.367%;left:4.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:54.259%;left:0%;width:20%"></div><div class="_" style="height:5.995%;top:47.367%;left:24.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:54.259%;left:20%;width:20%"></div><div class="_" style="height:5.995%;top:47.367%;left:44.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:54.259%;left:40%;width:20%"></div><div class="_" style="height:5.995%;top:47.367%;left:64.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:54.259%;left:60%;width:20%"></div><div class="_" style="height:5.995%;top:47.367%;left:84.667%;width:10.662%"></div><div class="_" style="height:2.699%;top:54.259%;left:80%;width:20%"></div><div class="_" style="height:20.233%;top:60.415%;left:2.663%;width:94.675%;border-radius:12px"></div><div class="_" style="height:25.937%;top:82.445%;left:2.663%;width:46.133%"></div><div class="_" style="height:25.937%;top:82.445%;left:51.329%;width:46.133%"></div><div class="_" style="height:6.918%;top:92.783%;left:2%;width:16%"></div><div class="_" style="height:6.918%;top:92.783%;left:22%;width:16%"></div><div class="_" style="height:6.918%;top:92.783%;left:42%;width:16%"></div><div class="_" style="height:6.918%;top:92.783%;left:62%;width:16%"></div><div class="_" style="height:6.918%;top:92.783%;left:82%;width:16%"></div><div class="_" style="height:4.498%;top:18.741%;left:84.529%;width:12.804%"></div></div>
  

</body></html>